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Description
Kenworth Leaf Spring Bushing Conversion Kit - TB-KIT-591TB KIT 591 Kenworth leaf spring bushing conversion kit for Kenworth leaf springs. Converts leaf spring bushings from rubber encased to threaded. Bushing Conversion Kit Details: Kit consists of (2) M5449 pins, (4) M5447 pins and (6) MTB178 bushings. Converts leaf springs with MR836 & MR902 rubber encased bushings to threaded bushings. Compatible Springs: 59 546, 59 548, 59 550, 59 552, 59 620 and 59 630 Application: Kenworth Alternate SKU Numbers: 339
TB-KIT-591 Kenworth leaf spring bushing conversion kit for Kenworth leaf springs. Converts leaf spring bushings from rubber encased to threaded.
Bushing Conversion Kit Details:
- Kit consists of (2) M5449 pins, (4) M5447 pins and (6) MTB178 bushings.
- Converts leaf springs with MR836 & MR902 rubber encased bushings to threaded bushings.
- Compatible Springs: 59-546, 59-548, 59-550, 59-552, 59-620 and 59-630
- Application: Kenworth
- Alternate SKU Numbers: 339-309, 339309 MKS5907, KW1500 and TBKIT591
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 2319 reviews
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Product Reviews
★★★★★ 5
An Instant Classic for Children!
Format: Hardcover
This book is lovely. The story is simple and timeless. The illustrations are bright and memorable. My grandchildren love Loren Long's books.
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Reviewed in the United States on January 8, 2026
★★★★★ 5
Unique book- creative story and pictures
Format: Hardcover
Absolutely love the black and white pictures with the yellow accents. This is a fun creative book. Perfect for my son who is obsessed with busses and the color yellow. Made from thick high quality materials. Great for young children to enjoy.
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Reviewed in the United States on December 23, 2025
★★★★★ 5
A Wonderful Book for Kids!
Format: Hardcover
We love this book! The story is simple, sweet, and engaging for kids. My children enjoy reading it again and again.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Beautiful
Format: Hardcover
This book is incredible. The story of the yellow bus and its life. Gorgeous illustrations and entertaining.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Great Book for Both Teachers and Students
Format: Hardcover
“The Yellow Bus Book” is such a meaningful and versatile read. It works perfectly for professional development with teachers, but it’s also great for sharing with kids. The message is simple, relatable, and powerful encouraging kindness, connection, and a positive mindset in school communities. I love that it opens the door for great conversations, whether you’re using it in a classroom, staff training, or even at home.
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Reviewed in the United States on January 2, 2026